Selas furnace
[化] 西拉斯炉
🧩 词语组成解析
🗣️ 情景例句
You should perform what you promised to do.
你应该履行诺言。
We're in competition with several other companies for the contract.
我们与另外几家公司逐争取这个合同。
What was the date?
（昨天）是几月几日？